dichotic pitch perception

[Heriberto Avelino <avelino@xxxxxxxxxxxxxxx>]

Dear list members,

I am conducting an experiment on dichotic perception of pitch in a tone
language which contrasts three phonemic tones (high,falling and low).
Some preliminary results indicate that overall falling and high tones
have a better scoring than the low tone (even when low tone is delivered
to the right ear, and regardless of selective attention
conditions).  I wonder if there is any psychoacoustic explanation to
this observation. I should mention that I controlled the amplitude of the
stimuli by normalizing all at 75dB, I also normalized the duration of the
stimuli, since words with falling tones are usually longer than low and
high tones. I wonder if you know of some references on the topic. I
greatly appreciate any suggestion on this.

Thanks for any help in advance,
Heriberto Avelino

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